Nasal rinse tip

ABSTRACT

A device for nasal lavage is described. The device ejects a gentle flow of fluid under pressure. The fluid stream provides a high quantity of fluid at low pressure. The low pressure fluid stream is more comfortable for a user than a high pressure fluid stream that are delivered by various types of pressurized cans of solution.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit under 35 U.S.C. §119(e) of pendingU.S. Patent Application No. 61/480,361, entitled “Rinse Tip”, filed Apr.28, 2011. The subject matter of this application is generally related toU.S. patent application Ser. No. 12/567,518, entitled “Nasal Rinse Tip”,filed Sep. 25, 2009. Each of these applications is incorporated byreference herein in its entirety.

FIELD

This disclosure relates to lavage.

BACKGROUND

People in many parts of the world perform nasal cleansing (or nasalirrigation) using a neti pot or other product on a routine basis, likebrushing their teeth or showering. Nasal cleansing is even incorporatedinto some forms of yoga practice, such as in Jala neti. Jala neti is aSanskrit term that refers to cleansing and translates to “watercleansing”. The solution for rinsing the nasal passages using a neti potor other product can be a saline solution. Some people use nasal rinsingto reduce allergies, improve breathing, eliminate post-nasal drip orsinus infections, moisten dry nasal passages, avoid catching a cold orto generally improve one's health to cite a few examples. Some peoplealso claim that nasal lavage improves ones vision by cleaning the tearducts, improves the sense of smell and improves ones sense of taste.Some nasal lavage products can include canisters containing rinsesolution that may be under excessive pressure, causing solution flow tobe somewhat uncomfortable during use.

SUMMARY

Systems and methods for dispensing fluid are described. In someimplementations, a dispensing device is provided that includes a bodyportion surrounding a cavity; and a tip portion having a fluid path thatis fluidly connected to the cavity, the tip portion having an internalactuator configured to cause fluid flow to exit the tip portion throughthe fluid path at a predetermined pressure level when the internalactuator is actuated.

DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic perspective view of a device.

FIGS. 2 and 3 are a schematic top view and a schematic plan view of atip used on the device.

FIGS. 4 and 5 are schematic perspective views of a tip used on thedevice.

FIG. 6 is a schematic side view of the tip.

FIG. 7 is a schematic perspective view of the device.

FIG. 8 is a schematic perspective view of the device in use.

FIG. 9 is a perspective view of an implementation of a tip and actuator.

FIG. 10 is a top view of an implementation of a tip.

FIG. 11 is a side view of a tip on an actuator.

FIG. 12 illustrates a schematic perspective view of a device.

FIG. 13 illustrates a schematic view facing towards the ejectiondirection of a nasal rinse assembly on the device.

FIG. 14A illustrates a schematic cross-section view of the nasal rinseassembly.

FIG. 14B illustrates a schematic prospective view of an inner componentof the nasal rinse assembly.

FIGS. 15A and 15B illustrate schematic bottom views of the nasal rinseassembly from two primary directions.

FIG. 16 illustrates a schematic side view of the nasal rinse assemblyexterior.

FIG. 17 illustrates a schematic view of the device in use.

FIGS. 18A and 18B illustrate schematic perspective views of variationsof the nasal rinse assembly.

DETAILED DESCRIPTION

Referring to FIG. 1, a fluid ejection device 10 is shown. The fluidejection device 10 includes a tip 12 that is attached to an actuator 13,which in turn is attached to a body 14. The body 14 can be, for example,a container of saline solution or any other fluid suitable forirrigating cavities (e.g., nasal cavities). The fluid ejection device 10can be used, for example, to provide nasal rinsing (or irrigation orlavage), such as to treat allergies, improve breathing, eliminatepost-nasal drip or sinus infections, moisten dry nasal passages, etc.The tip 12 can attenuate the pressure of fluid stored in the body 14,dispensing fluid at a significantly more gentle pressure but at a highervolume or flow rate. The gentle pressure can be sufficient pressure todeliver a flow of fluid to nasal tissue without the pressure being sogreat as to apply an amount of pressure to the tissue to displace thetissue.

In some implementations, the body 14 can be a fluid container (e.g.,can, canister, bottle, etc.) having bag-on valve technology where thereis a bag inside the container and the valve can release the solutionwhen the actuator is actuated, i.e., pressed. In some implementations,the fluid ejection device 10 can be used on a plastic bottle which ispressurized and has a solution inside the bottle. In someimplementations, the fluid delivery is from an aerosol type can, but thefluid is ejected from the tip 12 in a fluid stream, rather than anaerosol.

The tip 12 can be operable to provide an attenuated pressure of fluidflow from the body 14. For example, the body 14 can be acommercially-available, pressurized container of saline solution orother sterile fluid which ordinarily dispenses fluid at a pressure thatmay be unsuitable, uncomfortable or unsafe for use in lavage. As such,the tip 12 can include features that facilitate the delivery of fluid ina generally more gentle stream through at least one (e.g., about four ormore) apertures 16 at the end of the tip 12. Fluid flow can becontrolled, for example, by pressing the tip 12. In someimplementations, the tip 12 can be pressed straight against the nose,allowing fluid to flow from the tip. In some implementations, pressingthe tip 12 from the side can control fluid flow.

The tip 12 includes a distal portion 20 and a proximate portion 22. Insome implementations, the distal portion 20 of the tip 12 can beapproximately conically shaped, with a convex curved surface leadingfrom the apertures 16 toward the proximate portion 22. In someimplementations, the distal portion 20 can be approximately gumdrop- ormushroom-shaped. The tip 12 can include a tapered surface 30 thatpermits the tip 12 to conform to the cavity that is to be rinsed, suchas to conform to nostrils of different sizes. Specifically, the exteriorof the tip 12 can be tapered outwardly along the distal portion 20. Insome implementations, the tip 12 tapers from a wide portion 30 a up to anarrow portion 30 b, where the narrow portion 30 b is closer to theapertures 16 than to the proximate portion 22. Moreover, the tip 12 canbe sized to prevent the wide portion 30 a from extending all the wayinto the user's cavity (e.g., nostril).

The distal portion 20 can contain the features of the tip 12 thatfacilitate fluid flow, at an attenuated pressure, from the apertures 16.A stop 24 can be the ceiling of the interior fluid canal within the tip12, positioned to block the fluid flow exiting the body 14, and causingthe fluid flow to be redirected toward the proximate portion 22 of thetip 12. As a result, fluid can “pool” or otherwise accumulate inside thetip 12 and be dispensed at a reduced pressure through the apertures 16,while being replenished from fluid from the body 14 which dispenses at ahigher pressure.

The apertures 16 can be arranged, for example, on a mesa 32 at the endof the distal portion 20. As depicted, the mesa 32 has a relatively flatsurface, but other shapes (e.g., a convex shape) can be used that areeffective at distributing the apertures 16 for efficient dispensing offluid.

An aperture 26 in the proximate portion 22 can define the interiorboundary of a collar 28 that surrounds, and securely attaches to, aportion of the actuator 13. In some implementations, if the actuator 13is relatively small (e.g., a spray-paint can's spray button size), theaperture 26 can attach directly to the body 14. For example, the collar28 can provide a snap-fit, screw-fit, or other such sealed connectionbetween the proximate portion 22 (of the tip 12) and the body 14.However, when the actuator 13 is significantly larger, as it can be insome implementations, the tip 12 can attach directly to the actuator 13.In general, the tip 12 can be manufactured in various sizes or beadjustable to fit any size actuator 13 or body 14.

To aid in comfort of use, the tip 12 can be formed of a flexiblematerial, such as silicone or another soft, flexible material (e.g.,plastic, rubber, non-permeable cloth, etc.) that can generally feelcomfortable against the user's skin. In some implementations, the tip 12can have an exterior circumference of less than 2 cm, such as less than1.5 cm, allowing it to fit snugly against, but not extend all the wayinto, an average sized user's nostril. The actuator 13 can be formed ofa material that is significantly more rigid than the tip 12. As such,the actuator 13 can hold its shape during use.

The body 14 surrounds a chamber 38. The body 14 can be configured toresist a change in shape when pressure changes occur within the body 14due to the contents of the chamber 38 moving/being expelled. Forexample, if the body 14 is formed of a generally rigid material (e.g.,metal, such as steel or aluminum, plastic, such as a recyclable resin,such as polyethylene, polycarbonate or polypropylene, etc.), the body 14can retain its shape when the chamber 38 is fully-pressurized (e.g.,full of fluid), partially-pressurized, and essentially un-pressurized(e.g., when the fluid is essentially depleted).

In some implementations, the body 14 can include a bag 40 inside thechamber 38. The bag 40 can contain the fluid stored by the body 14 andcan be formed of a flexible material, such as a pliable plastic.Further, the bag 40 can be hermetically sealed from the space betweenthe body 14 and an exterior of the bag 40. As a result, using the bag 40or a device similar to the bag-on valve technology (e.g., a pressurizedcan or pressurized bottle) can provide a sterile solution suitable foruse in a body cavity or with a wound. As will be described in moredetail below, the body 14 can include a valve 42 and a tube 44. Thevalve 42, such as any type of valve used on spray cans, can be used tocontrol (e.g., start, stop, etc.) the flow of fluid from the chamber 38to the tip 12. The fluid can flow through the tube 44 which can extendinto the bottom end of the body 14, or the end that is most distal fromthe tip 12.

Referring to FIG. 2, an exemplary top view 50 of the fluid ejectiondevice 10 is shown. The top view 50 shows the apertures 16 a-16 darranged on the mesa 32, located on the tip of the distal portion 20. Asdepicted in FIG. 2, in some implementations, the centers of any pair ofadjacent apertures 16 a-16 d are spaced at between about 1 and 4millimeters, such as about 3 millimeters, as shown by distances 52 a and52 b. Specifically, the distance 52 a corresponds to the distancebetween the centers of apertures 16 a and 16 b. Similarly, the distance52 b corresponds to the distance between the centers of apertures 16 cand 16 d. The tip 12 can have an exterior circumference of less than 1.5cm.

The diameters of the apertures 16 a-16 d can be any value (e.g., betweenabout 1 and 2 millimeters, such as about 1.5 millimeters) such that, forexample, the combination of the group of apertures 16 a-16 d produces asufficient stream when the fluid ejection device 10 is in use. In someimplementations, as the number of apertures is increased, the diameterof the apertures generally can be reduced.

In some implementations, different sizes of the apertures 16 a-16 dand/or other spacing between the apertures 16 a-16 d can be used, andfewer or additional apertures 16 a-16 d can exist, with varyingdistances between any of the apertures 16 a-16 d. In someimplementations, distances 52 a and 52 b may be less than, or greaterthan, 3 millimeters. In some implementations, there are two, three,four, five or six apertures in the tip 12. The total cross sectionalarea of the apertures 16 a-16 d is generally less than the crosssectional area at any cross section of the canal 60 (e.g., havingdiameters 66 described with respect to FIG. 3) carrying the supply offluid through the tip 12.

Referring to FIG. 3, an exemplary side cross-section view 56 of thefluid ejection device 10 is shown. The view 56 shows the tapered shapeof the tip 12, including the tapered surface 30 that extends along thedistal portion 20 toward its intersection with the proximate portion 22.The view 56 further shows a cross-section of the features of theinterior of the tip 12. Fluid can flow through the tip 12 by entering abase area 57. For example, the base area 57 can include the collar 28that serves as the connection point between the tip 12 and the actuator13 and some adjacent region of the tip 12, such as a lower third of thetip. The collar 28 can surround or fit over a portion of the actuator13, such as the portion of the actuator 13 from which fluid can flow.Fluid dispensed from within the chamber 38 can flow through the basearea 57 and through the interior of the tip 12, exiting through the mostdistal end of the distal portion 20. In some implementations, the fluidcan flow through the tube 44 and valve 42 (see FIG. 1).

The view 56 further shows internal features of the tip 12. A canal 60 inthe interior of the tip 12 can provide fluid connectivity between thechamber 38 (e.g., via the actuator 13) and the apertures 16.Specifically, the canal 60 can extend from (and define the shape of) theaperture 26, defining the interior of the collar 24. The canal 60 canextend to, and be fluidly connected to, an annular chamber 62. In someimplementations, a circular or cylindrical chamber 64 can exist, and befluidly attached to, annular chamber 62 and canal 60. The canal 60 andthe chambers 62 and 64 can work in combination, for example, based ontheir dimensions, to attenuate the pressure of the fluid received fromthe body 14 that flows through and exits the tip 12. For example, thefluid entering the tip 12 can generally pool within the canal 60, andthe chambers 62 and 64 can facilitate the flow of the fluid through thetip 12 at suitable pressure through the apertures 16. For instance, theshape and size of the chambers 62 and 64 can restrict the flow of fluidto a volume that is ideal for delivery to the apertures 16.

Various dimensions of components of the tip 12 can exist. For example,the canal 60 can have a tapered shape, having dimensions that include,for example, a diameter 66 a of in the range between about 5 and 9 mm,such as about 7 mm at the aperture 26, a diameter 66 b of in the rangebetween about 5 and 7 mm, such as about 6 mm roughly halfway up throughthe canal 60, and an even smaller diameter 66 c such as in the rangebetween about 4 and 6 mm, such as about 5.5 mm or less approaching theapertures 16. The annular chamber 62 can have, for example, an outerdiameter 66 d equal to or less than 66 c, such as in the range betweenabout 4 and 5.2 mm, such as about 4.6 mm and an inner diameter 66 f ofin the range between about 1 and 1.5 mm, such as about 1.3 mm. Thecircular chamber 64 can have a diameter 66 e equal to or less than thatof diameter 66 c in the range between about 3 and 5 mm, such as about3.7 mm. In some implementations, the diameter 64 is less than the outerdiameter of chamber 62. The diameters 66 a-66 f are just examples, asother diameters can be used in other implementations.

Various other dimensions of components of the tip 12 can exist. Forexample, the circular chamber 64 can have a thickness 66 g in the rangebetween about 1 and 2 mm, such as about 1.5 mm. The annular chamber 62can have a thickness 66 h in the range between about 0.5 and 1.2 mm,such as about 0.8 mm. The region between the mesa 32 and the stop 24 atthe end of the distal portion 20 can have a thickness 66 i in the rangebetween about 0.8 and 1.2 mm such as about 1 mm. The canal 60 can have alength 66 j in the range of between about 20 and 30 mm, such as about 25mm. These thicknesses and lengths can vary in other implementations;however the side wall integrity of the tip 12 needs to be maintained.

Internal features of the tip 12 can vary in size and proportion to eachother, the advantages of which can include better control of pressureattenuation. For example, in some implementations, the externalcircumference of the annular chamber 62 can be greater than thecircumference of the circular chamber 64. In some implementations, thegreatest extent of the apertures 16 (e.g., the sum of the surface areasof the apertures 16) can be greater than an external circumference ofthe annular chamber 62. In some implementations, the circumference ofthe circular chamber 64 is less than the minimum circumference of thecanal 60 by in the range between 0.5 mm and 1.5 mm, such as at leastabout 1.0 mm. In some implementations, the canal 60 can have an internalvolume of in the range between 0.3 cm3 and 0.5 cm3, such as at leastabout 0.4 cm3. In some implementations, the combined area of theapertures 16 in the distal portion 20 of the tip 12 can be greater thanan area of the circular chamber 64.

In some implementations, the total cross sectional area of apertures 16is greater than the cross sectional area of the valve 42. Without beingbound to any particular theory, liquid exits from chamber 38 at a highpressure, such as at a pressure greater than about 10 psi, such as inthe range of 20 and 200 psi, such as at a pressure of greater than about30 psi and enters canal 60 directed toward the apertures 16. The highpressure fluid contacts an end wall (e.g., the stop 24), which redirectsthe fluid toward aperture 26. Some fluid exits apertures 16 while canal60 fills with fluid. Once the canal 60 fills, because the overalleffective area of the apertures 16 area is greater than the valve 42exit area in combination with the availability of fluid in the canal 60,the pressure of fluid exiting the chamber 38 is attenuated and the fluidexits the apertures 16 in a gentle contiguous stream.

Referring to FIG. 4, a perspective view of the fluid ejection device 10is shown. Although the implementation shown in FIG. 4 includes fourapertures 16 of the same size, other implementations can include more(or fewer) of the apertures 16. Further, the apertures 16 can havevarious sizes and spacing, for example, as can be determined throughexperimentation to deliver a stream of fluid more suitable for lavage.

In some implementation, various models of the fluid ejection device 10can exist, each having the advantage of a different configuration ofapertures 16. For example, some users may prefer using a specific “ModelX” over “Model Y” because of a difference in operation or “feel” ofeach, such as a noticeable difference in the strength of the stream offluid from each. In some implementations, additional versions of thefluid ejection device 10 can have significantly larger tips 12 (e.g.,for adults with significantly larger nostrils) or significantly smallertips 12 (e.g., for babies or toddlers). As such, different models orversions of the fluid ejection device 10 can be produced.

Although implementations of the tip 12 and the fluid ejection device 10are generally intended for human use, other implementations can includemodels or versions that are intended to use for animals, such as pets orlivestock. Referring to FIG. 5, a cross-section of a perspective view ofthe fluid ejection device 10 is shown. The view shows half of the tip 12exposed, and as such exposes half of the distal portion 20 and theproximate portion 22, as well as revealing the canal 60.

Fluid can flow through the tip 12 in the direction indicated by arrows72 a-72 c. Specifically, fluid from the body 14 can enter the tip 12, asindicated by arrow 72 a. Fluid entering the tip 12 does so through theaperture 26, as defined by the inner dimension of the collar 28. Fluidflows through the canal 60, on the interior of the tip 12, as indicatedby arrow 72 c. Fluid exits the tip 12 at the apertures 16, as indicatedby arrow 72 c. Before reaching the apertures 16, the fluid can flowthrough the annular chamber 62, the circular chamber 64, and any otherchambers not depicted.

Referring to FIG. 6, exemplary dimensions of the tip 12 are shown. Forinstance, in some implementations, the diameter 74 a of the widest partof the distal portion 20 (and of the tip 12 itself) can be, for example,in the range between 15 and 25 mm, such as about 20 mm or any other sizethat is suitable for use with human nostrils. In some implementations,the length 74 b of the tip 12 can be, for example, in the range between20 and 40 mm, such as about 30 mm, or any other suitable length. Forinstance, longer tips 12 can be necessary to fit different types ofactuators 14, depending on the size of any exposed tube 44 and valve 42.The diameter 74 c of the proximate portion 22 of the tip 12 can be, forexample, in the range between 7 and 14 mm, such as about 10 mm, or anyother size that can enable the tip 12 to fit the portion of the actuator13 or body 14 to which the tip 12 is attached.

Referring to FIG. 7, the fluid ejection device 10 is shown with the tip12 covering the aperture 26 and the valve 42 which are both extrudingfrom the body 14.

Referring to FIG. 8, an exemplary stream of fluid 76 flowing from thefluid ejection device 10 is shown. The stream of fluid 76 can have agentle arc, as depicted, due to the pressure-attenuating features of thetip 12. For example, while the fluid in the body 14 may be stored andreleased at a generally high pressure (e.g., too forceful for nasallavage), the tip 12 can receive the fluid at high pressure, attenuatethe pressure, and dispense the fluid at a lower pressure, but having ahigher volume. In this way, the fluid stream can achieve an arc and flowas generally depicted by the stream of fluid 76. The stream of fluid 76can exit the tip 12 along a trajectory that is substantially along acentral axis of the canal 60. The apex of the arc of fluid occurs withina range of between about 4 and 12 cm, such as 8 cm, such as within 7 cmor within 5 cm of the apertures. In some implementations, fluid isejected in a stream rather than ejected as a mist or as individualdroplets.

In some implementations, the tip 12 can include, or be fluidly connectedto, the actuator 13 that can be used to start and stop the flow of fluidfrom the body 14. The actuator 13 depicted here in FIG. 8 is larger thanthe embodiment of the actuator 13 depicted in FIG. 1. As such, the tip12 can connect directly to the larger actuator 13.

Referring to FIGS. 9 and 10, in some implementations, the tip 112 isapproximately conically shaped from top to bottom. The tip 112 can havea base 157 with a circular inner diameter and an outer diameter that iseither circular or approximately circular. Thus, the tip has an internalchannel extending from the base 157 to an end upper region 130 of thetip 112. The tip 112 can include one or more grooves 120, such as two,three, four, five or six grooves. The grooves 120 can extend from thebase 157 to the upper region 130 of the tip 112. In someimplementations, the grooves extend at least 80% of the length of thetip 112. The tip has a thickness in the grooved area that is less thanthe thickness in the non-grooved area. Therefore, the grooved area canbe more flexible than the non-grooved areas and can stretch more in alateral direction, the lateral direction being perpendicular to the longaxis of the internal channel, than the non-grooved areas.

Referring to FIGS. 9 and 11, in some implementations, the upper region130 of the tip has a smooth curved end 141. The upper region 130 of thetip can have one or more apertures 147 extending from the interiorchannel to the outer surface of the tip 112. In some implementations,the apertures 147 are not in the end 141, but are just below the end 141and on the sides of the end 141. In some implementations, the apertures147 are aligned with the thick portions of the tip 157 and not with thegrooves 120. In some implementations, the tip 112 includes two apertures147, each one directly across from one another so that the channel andthe apertures together form a T-shape.

As with the first described tip, this tip can be formed of a flexiblematerial, such as silicone or some another soft, flexible material(e.g., plastic, rubber, non-permeable cloth, etc.) that can generallyfeel comfortable against the user's skin. The actuator can be formed ofa material that is significantly more rigid than the tip 112. As such,the actuator can hold its shape during use.

The tip 112 can fit over an actuator 200. The actuator can be similar toor the same as the actuator shown in FIG. 9. The actuator 200 hasaperture 205 in its upper end. The aperture 205 is fluidly connected toa channel that extends the length of the actuator 200. The actuator 200has a flat region 220 for depressing the actuator 200 and causing it toactuate a valve to which the channel is fluidly connected. The aperture205 in the end of the actuator can be small, such as between 0.2 and 1mm, e.g., around 0.4-0.6 mm in diameter. In some implementations, theaperture 205 in the actuator 200 is smaller than the apertures 147 inthe tip 112.

Because of the flexibility of the tip 112, the tip can fit snugly aroundan end of the actuator. In some implementations, the snug fit is allaround the circumference of the actuator. Thus, a liquid tight fit canbe achieved around the actuator. In some implementations, at least 25%,such as at least 50%, for example, more than 60% of the tip length isover the actuator. This can prevent the tip from being pushed off of theactuator by the fluid pressure coming out of the dispenser. The shape ofthe actuator can be wider at the base than the tip. In someimplementations, the tip has a cylindrical portion at a distal end,which transitions into widening portion that extends to the base.Because the tip can be flexible and stretch, the width of the tip can beequal to or smaller than the width of the actuator when the tip is notstretched or is in a relaxed state.

Between the end of the actuator and the apertures in the tip the channelforms a pocket 175 where fluid can pool before being pushed out of theapertures. The pocket 175 can have a length of between about 0.5 and 1.5cm, such as around 1 cm. The pocket diameter can be between 0.2 and 0.6cm.

In some implementations, the external diameter of the tip 112 at itsbase 157 is between 0.8 and 1.4 cm, such as between 0.9 and 1.2 cm. Thethick regions of the tip 112 at the base 157 can be between 0.7 and 2mm, such as around 1.7 mm. The thin regions, that is, the regions withthe grooves, can be between 0.5 and 1 mm, such as about 0.7 or 0.8 mm.The length of the tip 112 can be between 2 and 5 cm, such as about 4 cm.The end of the tip 141 can be between 0.2 and 0.6 cm wide, such as about0.4 cm. The apertures 147 can have a diameter of between about 0.6 and1.5 mm, such as around 1 mm. The apertures 147 can be circular in shape.Other shapes are possible.

Unlike the tip shown in FIG. 8, the tip with the apertures on a sidesurface of the tip causes fluid to exit the tip at approximately a rightangle to the longest length of the tip. During use of the fluid ejectiondevice, a user can partially insert the tip into a nasal cavity. Thefluid ejection device can be held, for example, is in the uprightposition, where the tip is generally above the body. Controlling theflow of fluid from the tip can be accomplished, for example, by pressinga flat-shaped button area, operable to engage (or disengage) the valve(not shown) inside the actuator when the button area is pressed (orreleased). This fashion of controlling fluid flow differs from thatdescribed with respect to FIG. 1 in which the entire tip can be pressed.In FIG. 1, fluid flow can be controlled, for example, by pressingdownwardly or at an angle to a longitudinal axis of the tip. In someimplementations, the tip can be pressed straight against the nose sothat the actuator is effectively depressed, allowing the valve to openand fluid to flow from the tip. In some implementations, such as thoseshown in FIG. 8, the actuator can be depressed, such as with a finger,to cause solution to exit the tip. In some implementations, pressing thetip from the side actuates the valve and causes the fluid flow into thetip. Other implementations can include other controls, such as switches,levers, or electronic controls capable of opening and closing the valve.In some implementations, an additional control or button may exist thatallows the valve to be locked in the open position. The tip can providea gentler and more comfortable rinsing experience for a user.

In some implementations, the tip (e.g., tip 12) and the actuator (e.g.,13) can be integrated into one piece. In some implementations, the tipcan include an internal actuator configured to cause fluid flow to exitthe tip (e.g., via apertures 16) through the fluid path (e.g., the canal60) at a predetermined pressure level when the internal actuator isactuated. FIG. 12 illustrates a fluid ejection device 1200 that includesa tip integrated with an actuator.

Referring to FIG. 12, the fluid ejection device 1200 includes, a tip1212, an actuator 1250 and a body 1214. The body 14 can be, for example,a container of saline solution or any other fluid suitable forirrigating cavities. The fluid ejection device 1200 can be used, forexample, to provide nasal rinsing (or irrigation or lavage), such as totreat allergies, improve breathing, eliminate post-nasal drip or sinusinfections, moisten dry nasal passages, etc. The actuator 1250 enablesusers to release the fluid stored in the body 1214. The actuator 1250can include a texture surfaced structure 1210 that allows users tosecurely press down the actuator 1250 with fingers.

The tip 1212, which is integrated into the actuator 1250 (e.g., insteadof attaching the tip to the actuator or fitting the tip over theactuator as shown in FIG. 11), can be used attenuate the pressure offluid released by the actuator 1250, and dispense the fluid at asignificantly more gentle pressure but at a higher volume or flow rate.The gentle pressure can be sufficient pressure to deliver a flow offluid to nasal tissue without the pressure being so great as to applysufficient pressure to the tissue to displace the tissue. In someimplementations, the tip 1212 and the actuator 1250 can be viewed as atip having an internal actuator. However, this view should not beconstrued as limiting, and that it is equally true that the fluidejection device 1200 also can be seen to include an actuator having atip.

In some implementations, the body 1214 can be a fluid container (e.g.,can, canister, bottle, etc.) having bag-on valve technology where thereis a bag inside the can and the valve can release the solution when theactuator 1250 is actuated (e.g., pressed). In some implementations, thefluid ejection device 1200 can be used on a plastic or metal bottlewhich is pressurized and has a solution inside the bottle. In someimplementations, the fluid delivery is from an aerosol type can, but thefluid is ejected from the tip 1212 in a fluid stream, rather than anaerosol.

The tip 1212 can be operable to provide an attenuated pressure of fluidflow from the body 1214. For example, the body 1214 can be acommercially-available, pressurized container of saline solution orother sterile fluid which ordinarily dispenses fluid at a pressure thatmay be unsuitable, uncomfortable or unsafe for use in lavage. As such,the tip 1212 can include features that facilitate the delivery of fluidin a generally more gentle stream through at least one (e.g., about fouror more) apertures 1216 at the end of the tip 1212. Fluid flow can becontrolled, for example, by pressing the tip 1212. In someimplementations, the tip 1212 can be pressed straight against the nose,allowing fluid to flow from the tip. In some implementations, pressingthe tip 1212 from the side can control fluid flow.

The tip 1212 includes a distal portion 1220 and a proximate portion1222. The distal portion 1220 of the tip 1212 can be approximatelyconically shaped, with a convex curved surface leading from theapertures 1216 toward the proximate portion 1222. In someimplementations, the distal portion 1220 can be approximately gumdrop ormushroom shaped. The tip 1212 can include a tapered surface 1230 thatpermits the tip 1212 to conform to passages (e.g., nostrils) ofdifferent sizes. Specifically, the exterior of the tip 1212 can betapered outwardly along the distal portion 1220. In the example shown,the tip 1212 tapers from a wide portion 1230 a up to a narrow portion1230 b, where the narrow portion 1230 b is closer to the apertures 16than to the proximate portion 1222. Moreover, the tip 1212 can be sizedto prevent the wide portion 1230 a from extending all the way into theuser's nostril.

The distal portion 1220 can contain the features of the tip 1212 thatfacilitate fluid flow, at an attenuated pressure, from the apertures1216. The apertures 1216 can be arranged, for example, on aconvex-shaped mesa 1232 at the end of the distal portion 1220. Asdepicted, the mesa 1232 has a relatively flat surface, but other shapes(e.g., a flat shape) can be used that are effective at distributing theapertures 1216 for efficient dispensing of fluid.

The texture surfaced structure 1210 can be cylindrically shaped to fitinto the body 1214. The structure 1210 primarily connects the tip 1212to the body 1214 so that fluids stored inside the body 1214 cancommunicate through a conduit 1244 into the structure 1210 and finallyto the tip 1212. An aperture 1216 in the structure 1210 can define theinterior boundary of a collar 1228 that surrounds, and securely attachesto, a portion of the body 1214. For example, the collar 1228 can providea snap-fit, screw-fit, or other such sealed connection between thestructure 1210 and the body 1214.

To aid in comfort of use, the tip 1212 can be formed of a flexiblematerial, such as silicone or some another soft, flexible material(e.g., plastic, rubber, non-permeable cloth, etc.) that can generallyfeel comfortable against the user's skin. The tip 1212 can have anexterior circumference of less than 2 cm, such as less than 1.5 cm,allowing it to fit snugly against, but not extend all the way into, anaverage sized user's nostril. The structure 1210 can be formed of amaterial that is significantly more rigid than the tip 1212. As such,the structure 1210 can hold its shape during use. The overall actuator1250 therefore can include different materials to fulfill its functionwhile providing ergonomic comfort to users.

In some implementations, the diameter of the widest part of the distalportion 1220 (and of the tip 1212 itself) can be, for example, in therange between 15 and 25 mm, such as about 20 mm or any other size thatis suitable for use with human nostrils. In some implementations, thelength of the tip 1212 can be, for example, in the range between 20 and40 mm, such as about 30 mm, or any other suitable length. The diameterof the proximate portion 1222 of the tip 1212 can be, for example, inthe range between 7 and 14 mm, such as about 10 mm.

The body 1214 surrounds a chamber 1238. The body 1214 can be configuredto resist a change in shape when pressure changes occur within the body1214 due to the contents of the chamber 1238. For example, if the body1214 is formed of a generally rigid material (e.g. metal, such as steelor aluminum; plastic, such as a recyclable resin, such as polyethylene,polycarbonate or polypropylene, etc.), the body 1214 can retain itsshape when the chamber 1238 is fully-pressurized (e.g., full of fluid),partially-pressurized, and essentially unpressurized (e.g. when thefluid is essentially depleted).

In some implementations, the body 1214 can include a bag 1240 inside thechamber 1238. The bag 1240 can contain the fluid stored by the body 1214and can be formed of a flexible material, such as a pliable plastic.Further, the bag 1240 can be hermetically sealed from the space betweenthe body 1214 and an exterior of the bag 1240. As a result, using thebag 1240 or a device similar to the bag-on valve technology (e.g., apressurized can or pressurized bottle) can provide a sterile solutionsuitable for use in a body cavity or with a wound.

As will be described in more detail below, the body 1214 can include avalve 1242 and a tube 1244. The valve 1242, such as any type of valveused on spray cans, can be used to control (e.g., start, stop, etc.) theflow of fluid from the chamber 1238 to the actuator 1250. The valve 1242may be surrounded by an opening 1213 that fit with the actuator 1250;and allow the actuator 1250 to be partially surrounded by a supportivecircumference 1255 of the body 1214. The fluid can flow through the tube1244 which can extend into the bottom end of the body 1214, or the endthat is most distal from the actuator 1250.

Referring to FIG. 13, an exemplary view 1300 facing towards the ejectiondirection of the tip 1220 of the fluid ejection device 1200 is shown. Inthis example, the view 1300 shows apertures 1316 a-1316 d arranged on aconvex shaped mesa 1332, located on the tip of a distal portion 1320.Comparing to FIG. 12, the apertures 1316 a-1316 d can be the same as theapertures 1216, the mesa 1332 can be the same as the mesa 1232 and thedistal portion 1320 can be the same as the distal portion 1220.

As depicted in FIG. 13, in some implementations, the centers of any pairof adjacent apertures 1316 a-1316 d are spaced at between about 1 and 4millimeters, such as about 3 millimeters, as shown by distances 1352 aand 1352 b. Specifically, the distance 1352 a corresponds to thedistance between the centers of apertures 1316 b and 1316 d. Similarly,the distance 1352 b corresponds to the distance between the centers ofapertures 1316 a and 1316 c. The tip 1212 can have an exteriorcircumference of less than 1.5 cm.

The diameters of the apertures 1316 a-1316 d can be any value (e.g.,between about 1 and 2 millimeters, such as about 1.5 millimeters) suchthat, for example, the combination of the group of apertures 1316 a-1316d produces a sufficient stream when the fluid ejection device 1200 is inuse. In some implementations, as the number of apertures is increased,the diameter of the apertures generally can be reduced. In someimplementations, different sizes of the apertures 1316 a-1316 d and/orother spacing between the apertures 1316 a-1316 d can be used, and feweror additional apertures 1316 a-1316 d can exist, with varying distancesbetween any of the apertures 1316 a-1316 d. In some implementations,distances 1352 a and 1352 b may be less than, or greater than, 3millimeters. In some implementations, there are two, three, four, fiveor six apertures in the tip 1212. In some implementations, the size ofthe apertures varies on a single device (i.e., not all apertures arerequired to be the same size or be spaced by a same amount).

Referring to FIG. 14A, an exemplary side cross-section view 1400 of theactuator assembly 1250 is shown. From the view 1400, the actuator 1250includes an external shell 1210 and an internal component 1410. Theexternal shell 1210 has been discussed as the texture surfaced structure1210 in previous FIGS. 1 and 2. The features of the interior 1410 willbe elaborated in the following as well as in FIG. 14B, which illustratesa schematic prospective view of the inner component 1410 of the rinseassembly.

The view 1400 shows the tapered shape of the tip 1212, including thetapered surface that extends along the distal portion 1220 toward itsintersection with the proximate portion 1222. The view 1400 furthershows a cross-section of the features of the interior 1450 of thetexture surfaced structure 1210. Fluid can flow through the tip 1212 byentering a base tube 1430 of the inner component 1410. For example, thebase tube 1430 can couple with the body 1214 and be actuated bydisplacing downwards to open the valve 1242 of the body 1214 and torelease pressurized fluid through the conduit 1244 (FIG. 12). Fluiddispensed from within the chamber 1238 can flow through the base tube1430 and through the interior 1410 of the tip 1212, exiting through themost distal end of the distal portion 1220.

The view 1400 further shows internal features of the structure 1250. Acanal 1415 in the interior of the tip 1212 can provide fluidconnectivity between the tube 1430 and the apertures 1316. The canal1415 is formed from the clearance between the inner chamber of the tip1212 and the extruding portion of the inner component 1410. In someimplementations, the shape of the inner chamber of the tip 1212 and theextruding portion of the inner component 1410 can be identical or ofdifferent sizes. For example, the inner chamber of the tip 1212 can beof a cylindrical shape but slightly larger than that of the extrudingportion of the inner component 1410. Specifically, the canal 1415 canextend from the apertures 1316 to the most distal position of theproximate portion 1222.

The view 1400 also shows detail features of the inner component 1410.The component 1410 includes an extrusion portion 1460, a sealing portion1465, and the base tube 1430. The extrusion portion 1460 can be shapedas a tapered cylinder with the base portion connecting to the sealingportion 1465 wider than the tip portion. In some implementations, theextrusion portion 1460 can be substantially 26 mm in length. The tip ofthe extrusion portion can be a circular mesa of a substantially 4 mmdiameter. The extrusion portion 1460 can taper at substantially 2degrees and increase its cross-sectional diameter towards the sealingportion 1465. Approximately tangential to the sealing portion 1465, acylindrical cavity 1420 is formed inside the extrusion portion 1460. Thecavity 1420 extends in a direction as shown in FIG. 14A, but it may alsoextend in other directions. The cavity 1420 can be a cylindrical shapeof substantially 3 mm diameter.

The sealing portion 1465 can couple with the internal chamber of theactuator 1250 to form the passage that allows fluid to substantiallysealingly communicate from the base tube 1430 to the apertures 1316. Thesealing portion 1465 includes a stepped structure for sealing and anorifice 1470 connected to the base tube 1430 for attenuation andregulation of the fluid pressure. The stepped structure may include agroove that can install a rubber ring for improved sealing. In someimplementations, the orifice 1470 can be a cylindrical hole of asubstantially 0.6 mm diameter, connected to the internal cylindricalportion of the base tube 1430. The internal cylindrical portion of thebase tube 1430 can be substantially 1.5 mm in diameter and about 13 mmin total length. A gradual transition, such as a chamfer or a roundedstep, may exist at the connection between the orifice and the innercylindrical portion. The external diameter of the base tube 1430 can besubstantially 3.5 mm in diameter, or any dimension that ensures thestructural integrity to withstand internal pressure as well as externalcompression loading.

During operation, a user may press down the actuator 1250 by asserting aforce towards the body 1214 on the textured surface, which may be madeof any texture that increases the friction between the user's skin andthe actuator 1250. As the actuator displaces towards the body 1214, thevalve 1242 opens and the pressurized fluid ejects from the chamber 1238into the base tube 1430. Simultaneously, the compression against thebody 1214 allows the actuator 1250 to form a seal with the innercomponent 1410 at the sealing portion 1460. The fluid travels throughthe inner cylindrical portion of the base tube 1430 into the orifice1470, then into the canal 1415. The cavity 1420 may serve as a bufferfor pressure release as well as a reservoir storing extra fluid. Afterthe canal 1415 and the cavity 1420 are filled with the fluid, the fluidwill be ejected through the apertures 1216.

Referring to FIG. 14B, a schematic perspective view of the innercomponent 1410 is illustrated. The inner component 1410 can be made ofany material, such as a polymer, that enables its functions, such asretaining the shape during operation without excessive deformation. Insome implementations, the inner component 1410 can be made of syntheticrubber, Bakelite, neoprene, nylon, PVC, polystyrene, polyethylene,polypropylene, polyacrylonitrile, PVB, silicone, or other suchmaterials. In some implementations, the inner component 1410 is made ofpolymers that are of medium to low elastic modulus, which enables thesealing at the sealing portion 1465. The inner component 1410 may bemade of a same or different material as the textured surface structure1210. In this particular implementations, the textured surface structure1210 is made of another harder material that can avoid excessivedeformation from greater external forces and form a slippery surface forhygienic reasons.

Referring to FIGS. 12, 13, 14A and 14B, in some implementations, thetotal cross sectional area of apertures 1216 is greater than the crosssectional area of the valve 1242. Without being bound to any particulartheory, liquid exits from chamber 1238 at a high pressure, such as at apressure greater than about 10 psi, such as in the range of 20 and 1300psi, such as at a pressure of greater than about 30 psi and enters canal1415 directed toward the apertures 1216. The high pressure fluidcontacts an end wall (e.g., the stop 24), which redirects the fluidtoward aperture 1216. Some fluid exits apertures 1216 while canal 1415fills with fluid. Once the canal 1415 fills, because the overalleffective area of the apertures 1216 area is greater than the valve 1242exit area in combination with the availability of fluid in the canal1415, the pressure of fluid exiting the chamber 1238 is attenuated andthe fluid exits the apertures 1216 in a gentle contiguous stream.Referring to FIG. 12, a perspective view of the fluid ejection device1200 is shown. Although the implementation shown in FIG. 13 includesfour apertures 1316 of the same size, other implementations can includemore (or fewer) of the apertures 1316. Further, the apertures 1316 canhave various sizes and spacing, for example, as can be determinedthrough experimentation to deliver a stream of fluid more suitable forlavage.

In some implementations, various models of the fluid ejection device1200 can exist, each having the advantage of a different configurationof apertures 1216. For example, some users may prefer using a specific“Model X” over “Model Y” because of a difference in operation or “feel”of each, such as a noticeable difference in the strength of the streamof fluid from each. In some implementations, additional versions of thefluid ejection device 1200 can have significantly larger tips 1212(e.g., for adults with significantly larger nostrils) or significantlysmaller tips 1212 (e.g., for babies or toddlers). As such, differentmodels or versions of the fluid ejection device 1200 can be produced.Although implementations of the tip 1212 and the fluid ejection device1200 are generally intended for human use, other implementations caninclude models or versions that are intended to use for animals, such aspets or livestock.

Referring to FIGS. 15A and 15B, schematic bottom views of the nasalrinse assembly from two primary directions are shown. The two primarydirections are described in FIG. 14A as 1500 and 490. Referring first toFIG. 15A, the view in direction 1500 that is parallel to thelongitudinal axis of the base tube 1430. In order to enable efficientassembly, the texture surfaced structure 1210 has an asymmetric housing1530 for insertion of the inner component 1410. The inner component 1410may have a holding structure that allows for clamping or holding by ahuman or robotic assembler. The housing 1530 is structurally supportedby eight radial ribs 1520 a-1520 h. The ribs 1520 a-1520 h are designedso that the housing 1530 and the textured surface structure 1210 are oneunder normal use, while minimizing the material use in the structure.The tip 1510 is the same as the tip portion 1212 and can be used toguide the installation of the inner component 1410.

Now referring to FIG. 15B, another view is shown in the direction 490that is parallel to the longitudinal axis of the extrusion portion 1460.In some implementations, FIG. 15B shows exemplar rib designs regardingeach relative position to the housing 1530. For example, rib 1520 a hasan arc shape due to its furthest distance from the housing 1530. The rib1520 c and 1520 g extends vertically so that attaching to anotherstructure is made possible. The rib 1520 e is short but reinforced togive enough support to the housing 1530. Depending on the material used,the rib design may vary without geometric limitation when performing thesame structural function.

Referring to FIG. 16, exemplary dimensions of the actuator 1250 areshown. For instance, in some implementations, the diameter 1610 of thewidest part of the structure 1210 can be, for example, in the rangebetween 15 and 35 mm, such as about 24 mm or any other size that issuitable for use with the body 1214. In some implementations, theoverall height 1620 of the actuator 1250 can be, for example, in therange between 20 and 60 mm, such as about 40 mm, or any other suitablelength depending on various tips for various nostril sizes. Forinstance, longer tips can result in a larger dimension. The height 1630of the textured surface measured from the bottom of the actuator 1250can be, for example in the range between 15 and 30 mm, such as about 18mm, or any other suitable height to fit with the body 1214 andconvenient for fingers to reach. A mark can be embossed on the side wallof the structure 1210, at a height of 1640, which can be in the rangebetween 1 and 60 mm, such as 6.5 mm, to show logo, trademark, brandname, slogan, warnings or other important information.

Referring to FIG. 17, an exemplary stream 1700 of fluid flowing from thefluid ejection device 1200 that includes a body 1710 and an actuator1720 is shown. The body 1710 can be a can of any formable material (e.g.plastic) containing fluid. The body 1710 may contain pressurized fluidor unpressurized fluid. The actuator 1720 may be used to open a valve inthe body 1710 to release the pressurized fluid or may be used to actuatea pressurizing mechanism inside the body 1710 to eject the originalunpressurized fluid. The stream of fluid 1700 can have a gentle arc, asdepicted, due to the pressure-attenuating features of the actuator 1250.For example, while the fluid in the body 1214 may be stored and releasedat a generally high pressure (e.g., too forceful for nasal lavage), thetip 1212 of the actuator 1250 can receive the fluid at high pressure atthe base tube 1430, attenuate the pressure inside the actuator 1250, anddispense the fluid at a lower pressure through the apertures 1216, buthaving a higher volume. In this way, the fluid stream can achieve an arcand flow as generally depicted by the stream of fluid 1700. The streamof fluid 1700 can exit the tip 1212 along a trajectory that is along acentral axis of the canal 1415. The apex of the arc of fluid occurswithin a range of between about 4 and 12 cm, such as 8 cm, such aswithin 7 cm or within 5 cm of the apertures. In some implementations,fluid is ejected in a stream rather than ejected as a mist or asindividual droplets.

Referring to FIGS. 18A and 18B, in some implementation, various modelsof the actuator 1250 can exist, each having the advantage of a differentconfiguration of the tip portion 1212 for ejecting fluid at differentspeeds and volumes. These models may use the same inner component 1410to enable efficient production, assembly and quality control. In FIG.18A, the view 1800 shows an actuator 1850 that can eject a medium stripof fluid to cleanse, moisturize or sooth passages. Similar to theactuator 1250, the actuator 1850 includes a textured body structure 1810and a tip 1812 that includes an upper portion 1820 and a proximateportion 1822. The upper portion 1820 may have dimensions that allow thepiece completely inserted into a user's nostril. For example, the upperportion 1820 may be a cylindrical shape that has a diameter smaller thanan average size of human nostrils at the age of 5. At the end of theupper portion 1820, there is an aperture 1816 on a mesa 1832. Theaperture 1816 can be substantially similar to the aperture 1216. Theproximate portion 1822 connects the upper portion 1820 to the bodystructure 1810 and operates with the inner component 1410 to generatedesired fluid pressure and volume. In some implementations, the actuator1850 attenuates the fluid pressure further for ejection of a mediumstream through the aperture 1816.

In FIG. 18B, the view 1900 shows another actuator 1950 with a tip designthat ejects gentle mist. The actuator 1950 is substantially similar tothe actuator 1250 and the actuator 1850 in both external and internalstructure. The actuator 1950 also includes a textured body structure1910 and a tip 1912 that includes an upper portion 1920 and a proximateportion 822. The upper portion 1920 may have a stepped structure thatlimits the intrusion of the tip 1920 into nostrils. For example, theportion 1920 may have an insert 1940 that enters a nostril and astopping level 1932 that would contact the nostril during insertion. Atthe end of the upper portion 1920, there are many apertures 1916. Theapertures 1916 can be a matrix of many substantially small apertures.The proximate portion 1922 connects the upper portion 1920 to the bodystructure 1910 and operates with the inner component 1410 to generatedesired fluid pressure and volume. In some implementations, the actuator1950 attenuates the fluid pressure even further for ejection of gentlemist of fluid.

A number of embodiments of the invention have been described.Nevertheless, it will be understood that various modifications may bemade without departing from the spirit and scope of the invention. Forexample, instead of attenuating a fast stream of liquid into a gentleflow, a mist exiting the actuator can be transformed into a gentlecleansing stream of fluid. Accordingly, other embodiments are within thescope of the following claims.

What is claimed is:
 1. A dispensing device comprising: a body portionsurrounding a body cavity; a tip portion having a fluid path that isfluidly connected to the cavity, the tip portion having an internalactuator configured to cause fluid flow to exit the tip portion throughthe fluid path at a predetermined pressure level when the internalactuator is actuated, the tip portion including one or more apertures ona distal portion, an inner chamber and an extruding portion of an innercomponent that is disposed in the inner chamber forming acircumferential fluid canal, the circumferential fluid canal defined bya clearance between the inner chamber and the extruding portion of theinner component, wherein the extruding portion of the inner component isa tapered cylinder that is wider at the distal portion and includes atip cavity at a proximate portion, wherein fluid flow from the bodycavity is directed into the circumferential fluid canal, filing the tipcavity and the circumferential fluid canal so as to reduce pressure offluid exiting the apertures.
 2. The dispensing device of claim 1,wherein the internal actuator includes a valve that is open when theinternal actuator is actuated to allow the fluid flow to exit the tipportion.
 3. The dispensing device of claim 1, wherein the internalactuator is configured to attenuate the predetermined pressure level ofthe fluid flow when the internal actuator is actuated.
 4. The dispensingdevice of claim 3, wherein the internal actuator is configured toattenuate the predetermined pressure level of the fluid flow bydispensing fluid at a gentle pressure but higher volume than withoutattenuation.
 5. The dispensing device of claim 4, wherein the fluid isdispensed at the gentle pressure sufficient to deliver the fluid tonasal tissue without the pressure being so great as to displace thenasal tissue.
 6. The dispensing device of claim 3, wherein the internalactuator is configured to dispense the fluid as a mist when the internalactuator is actuated.
 7. The dispensing device of claim 3, wherein theinternal actuator is configured to attenuate the fluid flow at aplurality of different pressure levels.
 8. The dispensing device ofclaim 7, wherein the attenuation depends on a pressure at which theinternal actuator is actuated.
 9. The dispensing device of claim 7,wherein at least one of the plurality of different pressure levelsallows the fluid to be dispensed in large volume and low pressure withrespect to a different one of the plurality of different pressurelevels.
 10. The dispensing device of claim 7, wherein: the plurality ofdifferent pressure levels include a first pressure level, a secondpressure level, and a third pressure level; and the first pressure levelis configured to attenuate the fluid flow into a mist, the secondpressure level is configured to attenuate the fluid flow into a slowstream of fluid but still faster than the mist, and the third pressurelevel is configured to dispense the fluid in large volume but lowpressure compared to at least one of the first pressure level and thesecond pressure level.
 11. The dispensing device of claim 1, wherein theinternal actuator and the tip portion are formed of a same material. 12.The dispensing device of claim 1, wherein the internal actuator isintegrated into the tip portion as a unitary structure.
 13. Thedispensing device of claim 1, wherein the tip portion includes a surfacethat includes a collar that surrounds and securely attaches to a portionof the body portion.
 14. The dispensing device of claim 1, wherein thetip portion includes a base tube coupled with the body portion, the basetube actuated when displaced downward to open a valve for releasingpressurized fluid in the body portion.
 15. The dispensing device ofclaim 14, wherein the tip portion includes a sealing portion coupledwith the internal actuator to form the fluid path and configured to sealfluid from communicating from the base tube to one or more apertures inthe tip portion.
 16. The dispensing device of claim 15, wherein thesealing portion includes a stepped structure for sealing and an orificecoupled with the base tube for attenuation and regulation of fluidpressure.
 17. The dispensing device of claim 16, wherein the sealingportion, the base tube, the orifice form an integrated internalcomponent and configured to be housed inside the tip portion.